The wireless motion sensor doorbell offers an effective way to enhance security and monitor entrances at home, in offices, or in stores. It features a motion detector alarm and door chime to promptly notify users of activity near doors. Installation is simple, with the motion sensor easily mounted using screws or double-sided tape and the receiver plugged into a power source. This system supports up to 20 sensors or receivers, allowing for a customizable setup to safeguard property. The motion sensor has a maximum detection range of 26 feet and a wireless transmission distance of up to 500 ft. to the receiver. This makes it suitable for various locations such as front and back doors, business entryways, monitoring rooms, warehouses, and parking lots. The system triggers an immediate signal and plays an alert tone when movement is detected within the coverage area. The device offers 32 ringtones, including alarms and doorbell sounds, with 5 adjustable volume levels ranging from 0 to 110dB, including a mute mode. Users can customize alert tones and volume based on their preferences. The sensor is also equipped with a 360° rotatable design, enabling users to adjust the detection angle for optimal monitoring of key areas. The package includes one plug-in receiver and one motion sensor powered by 2 AAA batteries or an optional USB power supply. A 12-month warranty ensures peace of mind, with prompt support available for any product concerns.